In Alaska's Tongass National Forest, a tour guide was giving a talk to a group of tourists about hiking in grizzly bear territory: "Most bear encounters occur when hikers, being extra quiet along the trails in hopes of viewing wildlife, accidentally stumble into bears. The resulting surprise can be catastrophic."

To avoid this, he suggested that each hiker wear tiny bells on their clothing to warn the bears of their presence. "Also," he said further, "be especially cautious when you see signs of bears in the area, especially when you see bear droppings."

One tourist asked, "How do you identify bear droppings?"

"Oh that's easy," the guide explained. "They're the ones with all the tiny bells in them!"